1 /* A substitute for ISO C99 <wctype.h>, for platforms that lack it.
3 Copyright (C) 2006-2011 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19 /* Written by Bruno Haible and Paul Eggert. */
22 * ISO C 99 <wctype.h> for platforms that lack it.
23 * <http://www.opengroup.org/susv3xbd/wctype.h.html>
25 * iswctype, towctrans, towlower, towupper, wctrans, wctype,
26 * wctrans_t, and wctype_t are not yet implemented.
29 #ifndef _@GUARD_PREFIX@_WCTYPE_H
32 @PRAGMA_SYSTEM_HEADER@
37 /* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>.
38 Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
40 BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
41 included before <wchar.h>. */
48 /* Include the original <wctype.h> if it exists.
49 BeOS 5 has the functions but no <wctype.h>. */
50 /* The include_next requires a split double-inclusion guard. */
52 # @INCLUDE_NEXT@ @NEXT_WCTYPE_H@
55 #ifndef _@GUARD_PREFIX@_WCTYPE_H
56 #define _@GUARD_PREFIX@_WCTYPE_H
58 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
60 /* The definition of _GL_WARN_ON_USE is copied here. */
62 /* Solaris 2.6 <wctype.h> includes <widec.h> which includes <euc.h> which
63 #defines a number of identifiers in the application namespace. Revert
75 /* Define wint_t and WEOF. (Also done in wchar.in.h.) */
76 #if !@HAVE_WINT_T@ && !defined wint_t
83 # define WEOF ((wint_t) -1)
88 #if !GNULIB_defined_wctype_functions
90 /* FreeBSD 4.4 to 4.11 has <wctype.h> but lacks the functions.
91 Linux libc5 has <wctype.h> and the functions but they are broken.
92 Assume all 11 functions (all isw* except iswblank) are implemented the
93 same way, or not at all. */
94 # if ! @HAVE_ISWCNTRL@ || @REPLACE_ISWCNTRL@
96 /* IRIX 5.3 has macros but no functions, its isw* macros refer to an
97 undefined variable _ctmp_ and to <ctype.h> macros like _P, and they
98 refer to system functions like _iswctype that are not in the
99 standard C library. Rather than try to get ancient buggy
100 implementations like this to work, just disable them. */
116 /* Linux libc5 has <wctype.h> and the functions but they are broken. */
117 # if @REPLACE_ISWCNTRL@
118 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
119 # define iswalnum rpl_iswalnum
120 # define iswalpha rpl_iswalpha
121 # define iswblank rpl_iswblank
122 # define iswcntrl rpl_iswcntrl
123 # define iswdigit rpl_iswdigit
124 # define iswgraph rpl_iswgraph
125 # define iswlower rpl_iswlower
126 # define iswprint rpl_iswprint
127 # define iswpunct rpl_iswpunct
128 # define iswspace rpl_iswspace
129 # define iswupper rpl_iswupper
130 # define iswxdigit rpl_iswxdigit
131 # define towlower rpl_towlower
132 # define towupper rpl_towupper
137 # if @REPLACE_ISWCNTRL@
144 return ((wc >= '0' && wc <= '9')
145 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z'));
149 # if @REPLACE_ISWCNTRL@
156 return (wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z';
160 # if @REPLACE_ISWCNTRL@
167 return wc == ' ' || wc == '\t';
171 # if @REPLACE_ISWCNTRL@
178 return (wc & ~0x1f) == 0 || wc == 0x7f;
182 # if @REPLACE_ISWCNTRL@
189 return wc >= '0' && wc <= '9';
193 # if @REPLACE_ISWCNTRL@
200 return wc >= '!' && wc <= '~';
204 # if @REPLACE_ISWCNTRL@
211 return wc >= 'a' && wc <= 'z';
215 # if @REPLACE_ISWCNTRL@
222 return wc >= ' ' && wc <= '~';
226 # if @REPLACE_ISWCNTRL@
233 return (wc >= '!' && wc <= '~'
234 && !((wc >= '0' && wc <= '9')
235 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'Z')));
239 # if @REPLACE_ISWCNTRL@
246 return (wc == ' ' || wc == '\t'
247 || wc == '\n' || wc == '\v' || wc == '\f' || wc == '\r');
251 # if @REPLACE_ISWCNTRL@
258 return wc >= 'A' && wc <= 'Z';
262 # if @REPLACE_ISWCNTRL@
269 return ((wc >= '0' && wc <= '9')
270 || ((wc & ~0x20) >= 'A' && (wc & ~0x20) <= 'F'));
274 # if @REPLACE_ISWCNTRL@
281 return (wc >= 'A' && wc <= 'Z' ? wc - 'A' + 'a' : wc);
285 # if @REPLACE_ISWCNTRL@
292 return (wc >= 'a' && wc <= 'z' ? wc - 'a' + 'A' : wc);
295 # elif @GNULIB_ISWBLANK@ && (! @HAVE_ISWBLANK@ || @REPLACE_ISWBLANK@)
296 /* Only the iswblank function is missing. */
298 # if @REPLACE_ISWBLANK@
299 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
300 # define iswblank rpl_iswblank
302 _GL_FUNCDECL_RPL (iswblank, int, (wint_t wc));
304 _GL_FUNCDECL_SYS (iswblank, int, (wint_t wc));
309 # if defined __MINGW32__
311 /* On native Windows, wchar_t is uint16_t, and wint_t is uint32_t.
312 The functions towlower and towupper are implemented in the MSVCRT library
313 to take a wchar_t argument and return a wchar_t result. mingw declares
314 these functions to take a wint_t argument and return a wint_t result.
316 1. When the user passes an argument outside the range 0x0000..0xFFFF, the
317 function will look only at the lower 16 bits. This is allowed according
319 2. The return value is returned in the lower 16 bits of the result register.
320 The upper 16 bits are random: whatever happened to be in that part of the
321 result register. We need to fix this by adding a zero-extend from
322 wchar_t to wint_t after the call. */
325 rpl_towlower (wint_t wc)
327 return (wint_t) (wchar_t) towlower (wc);
329 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
330 # define towlower rpl_towlower
334 rpl_towupper (wint_t wc)
336 return (wint_t) (wchar_t) towupper (wc);
338 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
339 # define towupper rpl_towupper
342 # endif /* __MINGW32__ */
344 # define GNULIB_defined_wctype_functions 1
347 #if @REPLACE_ISWCNTRL@
348 _GL_CXXALIAS_RPL (iswalnum, int, (wint_t wc));
349 _GL_CXXALIAS_RPL (iswalpha, int, (wint_t wc));
350 _GL_CXXALIAS_RPL (iswcntrl, int, (wint_t wc));
351 _GL_CXXALIAS_RPL (iswdigit, int, (wint_t wc));
352 _GL_CXXALIAS_RPL (iswgraph, int, (wint_t wc));
353 _GL_CXXALIAS_RPL (iswlower, int, (wint_t wc));
354 _GL_CXXALIAS_RPL (iswprint, int, (wint_t wc));
355 _GL_CXXALIAS_RPL (iswpunct, int, (wint_t wc));
356 _GL_CXXALIAS_RPL (iswspace, int, (wint_t wc));
357 _GL_CXXALIAS_RPL (iswupper, int, (wint_t wc));
358 _GL_CXXALIAS_RPL (iswxdigit, int, (wint_t wc));
360 _GL_CXXALIAS_SYS (iswalnum, int, (wint_t wc));
361 _GL_CXXALIAS_SYS (iswalpha, int, (wint_t wc));
362 _GL_CXXALIAS_SYS (iswcntrl, int, (wint_t wc));
363 _GL_CXXALIAS_SYS (iswdigit, int, (wint_t wc));
364 _GL_CXXALIAS_SYS (iswgraph, int, (wint_t wc));
365 _GL_CXXALIAS_SYS (iswlower, int, (wint_t wc));
366 _GL_CXXALIAS_SYS (iswprint, int, (wint_t wc));
367 _GL_CXXALIAS_SYS (iswpunct, int, (wint_t wc));
368 _GL_CXXALIAS_SYS (iswspace, int, (wint_t wc));
369 _GL_CXXALIAS_SYS (iswupper, int, (wint_t wc));
370 _GL_CXXALIAS_SYS (iswxdigit, int, (wint_t wc));
372 _GL_CXXALIASWARN (iswalnum);
373 _GL_CXXALIASWARN (iswalpha);
374 _GL_CXXALIASWARN (iswcntrl);
375 _GL_CXXALIASWARN (iswdigit);
376 _GL_CXXALIASWARN (iswgraph);
377 _GL_CXXALIASWARN (iswlower);
378 _GL_CXXALIASWARN (iswprint);
379 _GL_CXXALIASWARN (iswpunct);
380 _GL_CXXALIASWARN (iswspace);
381 _GL_CXXALIASWARN (iswupper);
382 _GL_CXXALIASWARN (iswxdigit);
384 #if @GNULIB_ISWBLANK@
385 # if @REPLACE_ISWCNTRL@ || @REPLACE_ISWBLANK@
386 _GL_CXXALIAS_RPL (iswblank, int, (wint_t wc));
388 _GL_CXXALIAS_SYS (iswblank, int, (wint_t wc));
390 _GL_CXXALIASWARN (iswblank);
394 # if !GNULIB_defined_wctype_t
395 typedef void * wctype_t;
396 # define GNULIB_defined_wctype_t 1
400 /* Get a descriptor for a wide character property. */
402 # if !@HAVE_WCTYPE_T@
403 _GL_FUNCDECL_SYS (wctype, wctype_t, (const char *name));
405 _GL_CXXALIAS_SYS (wctype, wctype_t, (const char *name));
406 _GL_CXXALIASWARN (wctype);
407 #elif defined GNULIB_POSIXCHECK
409 # if HAVE_RAW_DECL_WCTYPE
410 _GL_WARN_ON_USE (wctype, "wctype is unportable - "
411 "use gnulib module wctype for portability");
415 /* Test whether a wide character has a given property.
416 The argument WC must be either a wchar_t value or WEOF.
417 The argument DESC must have been returned by the wctype() function. */
418 #if @GNULIB_ISWCTYPE@
419 # if !@HAVE_WCTYPE_T@
420 _GL_FUNCDECL_SYS (iswctype, int, (wint_t wc, wctype_t desc));
422 _GL_CXXALIAS_SYS (iswctype, int, (wint_t wc, wctype_t desc));
423 _GL_CXXALIASWARN (iswctype);
424 #elif defined GNULIB_POSIXCHECK
426 # if HAVE_RAW_DECL_ISWCTYPE
427 _GL_WARN_ON_USE (iswctype, "iswctype is unportable - "
428 "use gnulib module iswctype for portability");
432 #if @REPLACE_ISWCNTRL@ || defined __MINGW32__
433 _GL_CXXALIAS_RPL (towlower, wint_t, (wint_t wc));
434 _GL_CXXALIAS_RPL (towupper, wint_t, (wint_t wc));
436 _GL_CXXALIAS_SYS (towlower, wint_t, (wint_t wc));
437 _GL_CXXALIAS_SYS (towupper, wint_t, (wint_t wc));
439 _GL_CXXALIASWARN (towlower);
440 _GL_CXXALIASWARN (towupper);
442 #if !@HAVE_WCTRANS_T@
443 # if !GNULIB_defined_wctrans_t
444 typedef void * wctrans_t;
445 # define GNULIB_defined_wctrans_t 1
449 /* Get a descriptor for a wide character case conversion. */
451 # if !@HAVE_WCTRANS_T@
452 _GL_FUNCDECL_SYS (wctrans, wctrans_t, (const char *name));
454 _GL_CXXALIAS_SYS (wctrans, wctrans_t, (const char *name));
455 _GL_CXXALIASWARN (wctrans);
456 #elif defined GNULIB_POSIXCHECK
458 # if HAVE_RAW_DECL_WCTRANS
459 _GL_WARN_ON_USE (wctrans, "wctrans is unportable - "
460 "use gnulib module wctrans for portability");
464 /* Perform a given case conversion on a wide character.
465 The argument WC must be either a wchar_t value or WEOF.
466 The argument DESC must have been returned by the wctrans() function. */
467 #if @GNULIB_TOWCTRANS@
468 # if !@HAVE_WCTRANS_T@
469 _GL_FUNCDECL_SYS (towctrans, wint_t, (wint_t wc, wctrans_t desc));
471 _GL_CXXALIAS_SYS (towctrans, wint_t, (wint_t wc, wctrans_t desc));
472 _GL_CXXALIASWARN (towctrans);
473 #elif defined GNULIB_POSIXCHECK
475 # if HAVE_RAW_DECL_TOWCTRANS
476 _GL_WARN_ON_USE (towctrans, "towctrans is unportable - "
477 "use gnulib module towctrans for portability");
482 #endif /* _@GUARD_PREFIX@_WCTYPE_H */
483 #endif /* _@GUARD_PREFIX@_WCTYPE_H */